Molded urethane window gasket assembly with hinge member and apparatus and method for making same
US4761916A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1987 |
| Grant date | Aug 9, 1988 |
| Priority date | — |
| Expiry date | Jan 15, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/778
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An improved window gasket assembly with an integral living hinge member and the apparatus and associated method for reaction injection molding and bonding such assemblies, as well as other molded articles, are disclosed. The gasket is preferably integrally molded from an elastomeric material such as urethane, and at least a portion of which is simultaneously bonded onto at least one substantially transparent window panel. The gasket and window assembly can then be mounted and bonded or secured directly to a vehicle body panel opening, for example, with adhesives, thereby eliminating the need for discrete mechanical fasteners, with at least one window panel being hingedly and pivotally attached to said vehicle body panel. In one preferred embodiment of the invention, an improved aftermixer and gating apparatus includes a mixing body in which a flowable multi-constituent molding material is separated into a number of generally serpentine mixing passageways and reunited in a common mixing cavity before being conveyed through a fan-gate passageway to the mold cavity. Adjustment means is provided for selectively altering the size of the mixing cavity and its inlet openings in order to s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.